Finding the Fourth Proportional to 229,495.15, 316,727.99 and 138,900.97
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Solution
The fourth proportional to 229,495.15, 316,727.99 and 138,900.97 is: 191,698.28
Step by Step Solution
- Step 1: Write the proportion equation
229,495.15 : 316,727.99 = 138,900.97 : x - Step 2: Convert to fraction form
229,495.15/316,727.99 = 138,900.97/x - Step 3: Cross multiply
229,495.15x = 316,727.99 × 138,900.97 - Step 4: Simplify right side
229,495.15x = 43,993,825,037.15 - Step 5: Solve for x
x = 43,993,825,037.15/229,495.15 - Step 6: Final answer
x = 191,698.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.